The 47-year-old star owns a property firm called JFDI Productions, which rents out several houses and is worth over £4m according to company filings.

One of the tenants shared images of a bungalow he rents in Leicester, showing mould on walls and ceilings throughout the home, with the Big Issue.

Speaking to the street paper, the man, who wished to remain anonymous, said he felt "bitter and alienated" after living with damp and mould in the property for two years.

He said he and his flatmate began noticing a damp problem during an annual inspection with the management agent, Connells, a couple of years ago.

The pair - who were both key workers during COVID - said they pay £775 for the house per month.

Despite saying they complained to the management agency about the issue multiple times since then, they say no action has been taken, with the damp affecting rooms throughout the house.

They said the agent had advised they "ventilate the properly and keep the house warm during the winter," but the situation had continued to worsen.

"We remained patient, sending polite emails at first. In later conversations, my remarks became a bit sharper," he said.

Although they said high humidity readings in the house had eventually persuaded the management agency to install "a positive input ventilation system", they said that had only temporarily improved conditions.

The tenant described Mulhern as "a millionaire, profiting off our misery".

'Absolutely mortified' about the 'unacceptable' situation

Responding to news of the state of the home, a representative for Mulhern told Sky News the presenter was "absolutely mortified to learn about this situation and the awful experience the tenant has faced which is clearly unacceptable".

They said he had not been made aware of any of the issues and had relied entirely on the company that manage the property on his behalf.

They said he has now "personally requested for a team of damp specialists to visit the property to make sure that the problems with the ventilation and mould are resolved as a matter of urgency".

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Additionally, they confirmed the tenant had been contacted "to express sincere apologies for the distress and frustration the management of this matter has caused".

They said the situation "falls way below the standards Stephen expects and he is doing everything possible to remedy this ASAP, and this process is already under way".

A representative for Connells told Sky News: "As agents we work on behalf of the landlord and we continue to work with the landlord's representative to address the issues raised'."

Mulhern, who was announced as co-presenter of Dancing On Ice last year replacing Philip Schofield, will front the new series of the show alongside Holly Willoughby when it kicks off in January.